#A81F3F#A81F3F

#A81F3F is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.1% C 0.171 H 14.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#A81F3F
RGB	rgb(168, 31, 63)
HSL	hsl(346, 69%, 39%)
HSV	hsv(346, 82%, 66%)
CMYK	cmyk(0%, 81.5%, 62.5%, 34.1%)
CIE-LAB	lab(37.24, 55.18, 17.22)
CIE-LCH	lch(37.24, 57.81, 17.33°)
OKLab	oklab(48.07% 0.1657 0.042)
OKLCH	oklch(48.07% 0.171 14.2)
XYZ	xyz(17.5375, 9.6664, 5.6440)
Luminance	0.0966 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A81F3F #1FA888

analogous

#A81F84 #A81F3F #A8431F

triadic

#A81F3F #3FA81F #1F3FA8

tetradic

#A81F3F #84A81F #1FA888 #431FA8

square

#A81F3F #84A81F #1FA888 #431FA8

split-complementary

#A81F3F #1FA843 #1F84A8

monochromatic

#410C18 #74152C #A81F3F #D82C54 #E2607E

Accessibility & contrast

On white

7.16

#A81F3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#A81F3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A81F3F

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A81F3F	#FFFFFF	#000000	##FFFFFF
##A81F3F	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47463F

Deuteranopia (green-blind)

#6A623B

Tritanopia (blue-blind)

#B8002D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a81f3f;
/* rgb */ color: rgb(168, 31, 63);
/* oklch */ color: oklch(48.1% 0.171 14.2);

Tailwind

colors: {
  custom: {
    50: '#c96a73',
    500: '#a81f3f',
    950: '#000000',
  },
}

SCSS

$custom: #a81f3f;
$custom-light: #c96a73;
$custom-dark: #000000;

JSON

{
  "hex": "#a81f3f",
  "rgb": {
    "r": 168,
    "g": 31,
    "b": 63
  },
  "hsl": {
    "h": 345.985,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.48065,
    "c": 0.17097,
    "h": 14.2
  },
  "luminance": 0.09664
}

Semantic roles & 50–950 ramp

primary

#A81F3F

secondary

#5DC6AE

accent

#ECC33C

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#150708

muted

#837A7B

Preview Lab

Preview with #A81F3F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →